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The table below gives the per-pupil expenditures (in thousands of dollars) and their frequencies for the 50 states and the District of Columbia. Expenditure ($ thousands) Frequency 1-3 4-6 7-9 28 10-12 14 13-15 (a) Display these data with a frequency histogram. 30 30 28 28 25 25 20 20 Frequency 15 14 Frequency 15 14 10 10 6 5 1-3 4-6 7-9 10-12 13–15 1-3 4-6 7-9 10-12 13-15 Expenditure ($ thousands) Expenditure ($ thousands) 30 30 28 28 25 25 20 20 Frequency 15 14 Frequency 15 14 10 10 6 6. 1-3 4-6 7-9 10-12 13-15 1-3 4-6 7-9 10-12 13-15 Expenditure ($ thousands) Expenditure ($ thous ands) (b) Find the mean per-pupil expenditure. (Round your answer to two decimal places.) 28 x thousand dollars

The table below gives the per-pupil expenditures (in thousands of dollars) and their frequencies for the 50 states and the District of Columbia. Expenditure ($ thousands) Frequency 1-3 4-6 7-9 28 10-12 14 13-15 (a) Display these data with a frequency histogram. 30 30 28 28 25 25 20 20 Frequency 15 14 Frequency 15 14 10 10 6 5 1-3 4-6 7-9 10-12 13–15 1-3 4-6 7-9 10-12 13-15 Expenditure ($ thousands) Expenditure ($ thousands) 30 30 28 28 25 25 20 20 Frequency 15 14 Frequency 15 14 10 10 6 6. 1-3 4-6 7-9 10-12 13-15 1-3 4-6 7-9 10-12 13-15 Expenditure ($ thousands) Expenditure ($ thous ands) (b) Find the mean per-pupil expenditure. (Round your answer to two decimal places.) 28 x thousand dollars

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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please help solve the b) parts of the questions.

The table below gives the per-pupil expenditures (in thousands of dollars) and their frequencies for the 50 states and the District of Columbia. Expenditure ($ thousands) Frequency 1-3 4-6 6 7-9 28 10-12 14 13-15 (a) Display these data with a frequency histogram. 30 30 28 28 TT 25 25 20 20 Frequency 15 Frequency 15 14 10 10 6 5 5 1-3 4-6 7-9 10-12 13-15 1-3 4-6 7-9 10-12 13-15 Expenditure ($ thousands) Expenditure ($ thousands) 30 30 28 28 25 25 20 20 Frequency 15 14 Frequency 15 14 10 10 6 6 5- 5- 3. 1-3 4-6 7-9 10-12 13-15 1-3 4-6 7-9 10-12 13-15 Expenditure ($ thous ands) Expenditure ($ thousands) (b) Find the mean per-pupil expenditure. (Round your answer to two decimal places.) 28 x thousand dollars
Transcribed Image Text:The table below gives the per-pupil expenditures (in thousands of dollars) and their frequencies for the 50 states and the District of Columbia. Expenditure ($ thousands) Frequency 1-3 4-6 6 7-9 28 10-12 14 13-15 (a) Display these data with a frequency histogram. 30 30 28 28 TT 25 25 20 20 Frequency 15 Frequency 15 14 10 10 6 5 5 1-3 4-6 7-9 10-12 13-15 1-3 4-6 7-9 10-12 13-15 Expenditure ($ thousands) Expenditure ($ thousands) 30 30 28 28 25 25 20 20 Frequency 15 14 Frequency 15 14 10 10 6 6 5- 5- 3. 1-3 4-6 7-9 10-12 13-15 1-3 4-6 7-9 10-12 13-15 Expenditure ($ thous ands) Expenditure ($ thousands) (b) Find the mean per-pupil expenditure. (Round your answer to two decimal places.) 28 x thousand dollars
The table gives the unemployment rates for civilian workers in a country for selected years 1960–2013. Year 1960 1970 1980 1990 2000 2010 2011 2012 2013 Unemployment rate 5.6 4.8 7.1 5.5 4.0 9.8 9.1 8.3 8.0 (a) Display these data with a bar graph. Percent Percent Percent A bar graph with 9 class labels along the horizontal axis is GV ontal axis is in years. The vertical axis is labeled: Percent Unemployed. Unemployed Unemployed 10 10 Vertical rectangles are drawn centered ove the respective dlass labels8Moving left to right, information about the rectangles (beginning with class label) is listed below. 8 8 6 • 1960: 5.6 units tall • 1970: 4.8 units tall • 1980: 7.1 units tall • 1990: 5.5 units tall • 2000: 4 units tall • 2010: 9.8 units tall 4 4 2011: 8.3 units tall • 2012: 8 units tall 1960 1970180 1990 2000 2010 2011 2012 2013 • 2013: 9.1 units tall 1960 1970 1980 1990 2000 2010 2011 2012 2013 1960 1970 1980 1990 2000 2010 2011 2012 2013 Percent Unemployed 10 8 4 1960 1970 1980 1990 2000 2010 2011 2012 2013 (b) Summarize the data by finding the mean and standard deviation of the unemployment rate. (Round your answers to two decimal places.) mean standard deviation
Transcribed Image Text:The table gives the unemployment rates for civilian workers in a country for selected years 1960–2013. Year 1960 1970 1980 1990 2000 2010 2011 2012 2013 Unemployment rate 5.6 4.8 7.1 5.5 4.0 9.8 9.1 8.3 8.0 (a) Display these data with a bar graph. Percent Percent Percent A bar graph with 9 class labels along the horizontal axis is GV ontal axis is in years. The vertical axis is labeled: Percent Unemployed. Unemployed Unemployed 10 10 Vertical rectangles are drawn centered ove the respective dlass labels8Moving left to right, information about the rectangles (beginning with class label) is listed below. 8 8 6 • 1960: 5.6 units tall • 1970: 4.8 units tall • 1980: 7.1 units tall • 1990: 5.5 units tall • 2000: 4 units tall • 2010: 9.8 units tall 4 4 2011: 8.3 units tall • 2012: 8 units tall 1960 1970180 1990 2000 2010 2011 2012 2013 • 2013: 9.1 units tall 1960 1970 1980 1990 2000 2010 2011 2012 2013 1960 1970 1980 1990 2000 2010 2011 2012 2013 Percent Unemployed 10 8 4 1960 1970 1980 1990 2000 2010 2011 2012 2013 (b) Summarize the data by finding the mean and standard deviation of the unemployment rate. (Round your answers to two decimal places.) mean standard deviation
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